javamail简单使用

MailInfo类：

//发送邮件的信息类
public class MailInfo {
	private String personal;// 姓名
	private String subject;// 主题
	private Date sentDate = new Date();// 发送时间
	private List<String> toList = new ArrayList<String>();// 主送人集合
	private List<String> ccList = new ArrayList<String>();// 抄送人集合
	private List<String> bccList = new ArrayList<String>();// 密送人集合
	private List<String> fileList = new ArrayList<String>();// 附件集合
	private List<HtmlImage> imgList = new ArrayList<HtmlImage>();// 发送html所要用到的img图片集合
}

 

MailClient类：

package org.forever.javamail;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.BodyPart;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.Session;
import javax.mail.Store;
import javax.mail.Transport;
import javax.mail.URLName;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import javax.mail.internet.MimeUtility;
import javax.mail.util.ByteArrayDataSource;

public class MailClient {

	private static final String CONTENT_ID = "Content-ID";
	private static final String TEXT_PLAIN = "text/plain";
	private static final String APPLICATION_OCTET_STREAM = "application/octet-stream";
	private static final String DEBUG = "debug";
	private static final String FALSE = "false";
	private static final String TRUE = "true";
	private static final String POINT = ".";
	private static final String INBOX = "INBOX";
	private static final String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
	private static final String POP3 = "pop3";
	private static final String MAIL = "mail";
	private static final String SMTP = "smtp";
	private static final String AUTH = "auth";
	private static final String HOST = "host";

	private int pop3Port = 110;
	private String pop3Host;
	private String from;// 发件人邮件地址
	private String userName;// 用户名
	private String password;// 密码
	private Session session;// 会话接口
	private String savePath = "C:\\temp\\";// 附件保持路径
	public static final int TEXT = 1;// 文本内容
	public static final int HTML = 2;// html内容

	private String smtpHost;// 域名

	public MailClient(String userName, String password, String smtpHost,
			String pop3Host) {
		this.smtpHost = smtpHost;
		this.userName = userName;
		this.password = password;
		this.pop3Host = pop3Host;
		from = userName + "@" + smtpHost;
		Properties props = System.getProperties();
		props.put(MAIL + POINT + SMTP + POINT + HOST, smtpHost);
		props.put(MAIL + POINT + SMTP + POINT + AUTH, TRUE);
		props.put(MAIL + POINT + DEBUG, FALSE);
		session = Session.getDefaultInstance(props, new EmailAuthenticator(
				userName, password));
	}

	// 发送消息
	public void sendMail(MailInfo mailInfo, int sendType) throws Exception {
		Message message = new MimeMessage(session);
		Address fromAddress = new InternetAddress(from, mailInfo.getPersonal());
		message.setSubject(mailInfo.getSubject());
		message.setSentDate(mailInfo.getSentDate());
		message.setFrom(fromAddress);
		Multipart multipart = new MimeMultipart();
		switch (sendType) {
		case TEXT:
			BodyPart textPart = new MimeBodyPart();
			textPart.setContent(mailInfo.getContent(),
					"text/plain;charset=utf-8");
			multipart.addBodyPart(textPart);
			break;
		case HTML:
			BodyPart htmlPart = new MimeBodyPart();
			htmlPart.setContent(mailInfo.getContent(),
					"text/html;charset=utf-8");
			multipart.addBodyPart(htmlPart);
			break;
		default:
			break;
		}
		for (String filePath : mailInfo.getFileList()) {
			File file = new File(filePath);
			if (!file.exists())continue;
			BodyPart attchPart = new MimeBodyPart();
			DataSource source = new FileDataSource(file);
			attchPart.setDataHandler(new DataHandler(source));
			attchPart.setFileName(MimeUtility.encodeText(file.getName()));
			multipart.addBodyPart(attchPart);
		}
		
		for (HtmlImage htmlImage : mailInfo.getImgList()) {
			String filePath = htmlImage.getFilePath();
			File file = new File(filePath);
			if (!file.exists())continue;
			BodyPart imgPart = new MimeBodyPart();
			imgPart.setDataHandler(new DataHandler(
					new ByteArrayDataSource(ImageUtil.imageToByteArray(filePath),APPLICATION_OCTET_STREAM)
					));
			imgPart.setFileName(MimeUtility.encodeText(file.getName()));
		    imgPart.setHeader(CONTENT_ID, "<"+htmlImage.getCid()+">");
			multipart.addBodyPart(imgPart);
		}
		
		message.setContent(multipart);

		for (String bcc : mailInfo.getBccList()) {
			message.setRecipient(Message.RecipientType.BCC,
					new InternetAddress(bcc));
			Transport.send(message);
		}
		System.out.println("send success.....");
	}

	public boolean isRead(Message message) throws Exception {
		boolean isRead = false;
		for (Flags.Flag flag : message.getFlags().getSystemFlags()) {
			if (flag == Flags.Flag.SEEN) {
				isRead = true;
				System.out.println("isRead=true......");
			}
		}
		return isRead;
	}

	// 获取消息
	public Message[] getMail() throws Exception {
		URLName urln = new URLName(POP3, pop3Host, pop3Port, null, userName,
				password);
		Store store = session.getStore(urln);
		store.connect();
		Folder folder = store.getFolder(INBOX);
		folder.open(Folder.READ_ONLY);
		Message message[] = folder.getMessages();
		return message;
	}

	// 清除所有邮件
	public void clearAllMail() throws Exception {
		URLName urln = new URLName(POP3, pop3Host, pop3Port, null, userName,
				password);
		Store store = session.getStore(urln);
		store.connect();
		Folder folder = store.getFolder(INBOX);
		folder.open(Folder.READ_WRITE);
		Message message[] = folder.getMessages();
		for (Message item : message) {
			System.out.println("MegID: " + item.getMessageNumber()
					+ "   Title: " + item.getSubject() + "Flags: "
					+ item.getFlags());
			item.setFlag(Flags.Flag.DELETED, true);
		}
		folder.close(true);
		store.close();
	}

	// 打印消息内容
	public void printMessage(Message[] message) throws MessagingException,
			Exception, IOException {

		SimpleDateFormat sdf = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
		for (Message msg : message) {
			InternetAddress address = (InternetAddress) msg.getFrom()[0];
			System.out.println("messageNumber：" + msg.getMessageNumber());
			System.out.println("personal：" + address.getPersonal());
			System.out.println("address：" + address.getAddress());
			System.out.println("sentDate：" + sdf.format(msg.getSentDate()));
			System.out.println("status：" + isRead(msg));
			System.out.println("subject：" + msg.getSubject());
			Object content = msg.getContent();
			if (content instanceof Multipart) {
				Multipart multipart = (Multipart) content;
				int count = multipart.getCount();
				for (int i = 0; i < count; i++) {
					BodyPart bodyPart = multipart.getBodyPart(i);
					Object bodyContent = bodyPart.getContent();
					String[] mimeType = bodyPart.getContentType().split(";");
					System.out.println("type：" + bodyPart.getContentType());
					if (APPLICATION_OCTET_STREAM.equals(mimeType[0])) {
						MimeBodyPart attchPart = (MimeBodyPart) bodyPart;
						String fileName = MimeUtility.decodeText(attchPart.getFileName());   
						System.out.println("fileName:" + fileName);
						InputStream in = attchPart.getInputStream();
						FileUtil.saveFile(in, savePath,fileName);
					} else if (TEXT_PLAIN.equals(mimeType[0])) {
						System.out.println("content：" + bodyContent);
					}
					System.out.println("--------------------------------");
				}
			} else {
				System.out.println(content);
			}
			System.out
					.println("*************************************************");
		}
	}

	public String getSavePath() {
		return savePath;
	}

	public void setSavePath(String savePath) {
		this.savePath = savePath;
	}

	public int getPop3Port() {
		return pop3Port;
	}

	public void setPop3Port(int pop3Port) {
		this.pop3Port = pop3Port;
	}

	public String getPop3Host() {
		return pop3Host;
	}

	public void setPop3Host(String pop3Host) {
		this.pop3Host = pop3Host;
	}

	public String getFrom() {
		return from;
	}

	public void setFrom(String from) {
		this.from = from;
	}

	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public String getSmtpHost() {
		return smtpHost;
	}

	public void setSmtpHost(String smtpHost) {
		this.smtpHost = smtpHost;
	}

	
	
}

 

MailTest测试类：

package org.forever.javamail;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import org.junit.Test;

public class MailTest {

	// 测试用户如下：chenjun,mqq,hds,yw

	// 测试局域网的发送情况
	@Test
	public void testSendEmail_localhost() {
		// 假设发送人chenjun,主送人：mqq,抄送人：hds,密送人：yw
		MailClient cjClient = new MailClient("chenjun", "cj", "localhost",
				"localhost");
		MailInfo cjMail = new MailInfo();
		cjMail.setPersonal("陈均");
		cjMail.setSubject("吃饭了");
		cjMail.setContent("晚上9点，准时开饭");

		cjMail.getToList().add("mqq@localhost");
		cjMail.getCcList().add("hds@localhost");
		cjMail.getBccList().add("yw@localhost");
		try {
			cjClient.sendMail(cjMail, MailClient.TEXT);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试局域网所发邮件的信息是否已经收到
	@Test
	public void testGetEmail_localhost() {
		MailClient mqqClient = new MailClient("mqq", "mqq", "localhost",
				"localhost");
		MailClient hdsClient = new MailClient("hds", "hds", "localhost",
				"localhost");
		MailClient ywClient = new MailClient("yw", "yw", "localhost",
				"localhost");
		try {
			mqqClient.printMessage(mqqClient.getMail());
			hdsClient.printMessage(hdsClient.getMail());
			ywClient.printMessage(ywClient.getMail());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试向abstractforever外网发送邮件
	@Test
	public void testSendEmail_abstractforever() {
		// 假设发送人chenjun,主送人：mqq,抄送人：hds,//密送人：yw
		MailClient cjClient = new MailClient("chenjun", "cj",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailInfo cjMail = new MailInfo();
		cjMail.setPersonal("陈均");
		cjMail.setSubject("吃饭了");
		cjMail.setContent("晚上9点，准时开饭");
		cjMail.getToList().add("[email protected]");
		cjMail.getCcList().add("[email protected]");
		cjMail.getBccList().add("[email protected]");

		try {
			cjClient.sendMail(cjMail, MailClient.TEXT);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试所发邮件的信息是否已经收到
	@Test
	public void testGetEmail_abstractforever() {
		MailClient mqqClient = new MailClient("mqq", "mqq",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailClient hdsClient = new MailClient("hds", "hds",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailClient ywClient = new MailClient("yw", "yw",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailClient cjClient = new MailClient("chenjun", "cj",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		try {
			mqqClient.printMessage(mqqClient.getMail());
			hdsClient.printMessage(hdsClient.getMail());
			ywClient.printMessage(ywClient.getMail());
			cjClient.printMessage(cjClient.getMail());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试清除邮件服务器的邮件
	@Test
	public void testClearAllEmail_abstractforever() {
		MailClient mqqClient = new MailClient("mqq", "mqq",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailClient hdsClient = new MailClient("hds", "hds",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailClient ywClient = new MailClient("yw", "yw",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailClient cjClient = new MailClient("chenjun", "cj",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		try {
			mqqClient.clearAllMail();
			hdsClient.clearAllMail();
			ywClient.clearAllMail();
			cjClient.clearAllMail();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试向163外网发送邮件
	@Test
	public void testSendEmail_163() {
		// 假设发送人chenjun,主送人：abstractforever,抄送人：abstractforever,密送人：abstractforever
		MailClient cjClient = new MailClient("chenjun", "cj",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailInfo cjMail = new MailInfo();
		cjMail.setPersonal("陈均");
		cjMail.setSubject("吃饭了");
		cjMail.setContent("晚上9点，准时开饭");
		cjMail.getToList().add("[email protected]");
		cjMail.getCcList().add("[email protected]");
		cjMail.getBccList().add("[email protected]");
		cjMail.getFileList().add("e:\\a.doc");
		cjMail.getFileList().add("e:\\中文附件.doc");
		try {
			cjClient.sendMail(cjMail, MailClient.TEXT);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试获取163邮件信息
	@Test
	public void testGetEmail_163() {
		MailClient afClient = new MailClient("abstractforever", "*****",
				"smtp.163.com", "pop3.163.com");
		try {
			afClient.printMessage(afClient.getMail());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试清除163邮件信息
	@Test
	public void testClearAllEmail_163() {
		MailClient cjClient = new MailClient("abstractforever", "*****",
				"smtp.163.com", "pop3.163.com");
		try {
			cjClient.clearAllMail();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试向qq外网发送邮件
	@Test
	public void testSendEmail_qq() {
		// 假设发送人chenjun,主送人：396481925,抄送人：396481925,密送人：396481925
		MailClient cjClient = new MailClient("chenjun", "cj",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailInfo cjMail = new MailInfo();
		cjMail.setPersonal("陈均");
		cjMail.setSubject("吃饭了");
		cjMail.setContent("晚上9点，准时开饭");
		cjMail.getToList().add("[email protected]");
		cjMail.getCcList().add("[email protected]");
		cjMail.getBccList().add("[email protected]");
		try {
			cjClient.sendMail(cjMail, MailClient.TEXT);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试获取qq邮件信息
	@Test
	public void testGetEmail_qq() {
		MailClient qqClient = new MailClient("396481925", "*****",
				"smtp.qq.com", "pop.qq.com");
		try {
			qqClient.printMessage(qqClient.getMail());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试清除qq邮件信息
	@Test
	public void testClearAllEmail_qq() {
		MailClient cjClient = new MailClient("396481925", "*****",
				"smtp.qq.com", "pop.qq.com");
		try {
			cjClient.clearAllMail();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试向abstractforever外网发送邮件,带附件的
	@Test
	public void testSendEmailAtt_abstractforever() {
		// 假设发送人chenjun,主送人：mqq,抄送人：hds,//密送人：yw
		MailClient cjClient = new MailClient("chenjun", "cj",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailInfo cjMail = new MailInfo();
		cjMail.setPersonal("陈均");
		cjMail.setSubject("吃饭了");
		cjMail.setContent("晚上9点，准时开饭");
		cjMail.getToList().add("[email protected]");
		cjMail.getFileList().add("e:\\a.doc");
		cjMail.getFileList().add("e:\\中文附件.doc");
		try {
			cjClient.sendMail(cjMail, MailClient.TEXT);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试向abstractforever外网获取邮件,带附件的
	@Test
	public void testGetEmailAtt_abstractforever() {
		MailClient mqqClient = new MailClient("mqq", "mqq",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		try {
			mqqClient.printMessage(mqqClient.getMail());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	// 测试发送html内容，带图片
	@Test
	public void testSendEmailHtml_163() {
		// 假设发送人chenjun,主送人：abstractforever,抄送人：abstractforever,密送人：abstractforever
		MailClient cjClient = new MailClient("chenjun", "cj",
				"abstractforever.gicp.net", "abstractforever.gicp.net");
		MailInfo cjMail = new MailInfo();
		cjMail.setPersonal("陈均");
		cjMail.setSubject("吃饭了");

		StringBuffer html = new StringBuffer();
		String line = "";
		try {
			BufferedReader in = new BufferedReader(new InputStreamReader(
					MailTest.class.getClassLoader().getResourceAsStream(
							"table.html"), "UTF-8"));
			while ((line = in.readLine()) != null) {
				html.append(line);
			}
		} catch (Exception e1) {
			e1.printStackTrace();
		}
		System.out.println(html);
		cjMail.setContent(html.toString());
		cjMail.getImgList().add(new HtmlImage("img_1", "e:\\a.jpg"));
		cjMail.getToList().add("[email protected]");
		cjMail.getFileList().add("e:\\a.doc");
		cjMail.getFileList().add("e:\\中文附件.doc");
		try {
			cjClient.sendMail(cjMail, MailClient.HTML);
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

}